<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">{{title}}</h3>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code">
        <!--<el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img"/>
        </div>-->
        <JcRange :successFun="onMpanelSuccess" :errorFun="onMpanelError" ref="rang"></JcRange>
      </el-form-item>
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
      <!--<el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>-->
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2021 ruoyi.vip All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
    import { getCodeImg } from "@/api/login";
    import Cookies from "js-cookie";
    import { encrypt, decrypt } from '@/utils/jsencrypt'
    import defaultSettings from '@/settings.js'
    //滑块验证码
    import JcRange from "@/components/JcRange/JcRange.vue";

    export default {
        name: "Login",
        data() {
            return {
                title: defaultSettings.title,
                checkStatus: false,//验证码状态
                codeUrl: "",
                cookiePassword: "",
                loginForm: {
                    username: "admin",
                    password: "admin123",
                    rememberMe: false,
                    code: "",
                    uuid: ""
                },
                loginRules: {
                    username: [
                        { required: true, trigger: "blur", message: "用户名不能为空" }
                    ],
                    password: [
                        { required: true, trigger: "blur", message: "密码不能为空" }
                    ],
                    //code: [{ required: false, trigger: "change", message: "验证码不能为空" }]
                },
                loading: false,
                redirect: undefined
            };
        },
        components: {
            JcRange
        },
        watch: {
            $route: {
                handler: function(route) {
                    this.redirect = route.query && route.query.redirect;
                },
                immediate: true
            }
        },
        created() {
            this.getCode();
            this.getCookie();
        },
        methods: {
            getCode() {
                getCodeImg().then(res => {
                    this.codeUrl = "data:image/gif;base64," + res.data.img;
                    this.loginForm.uuid = res.data.uuid;
                    this.loginForm.code = res.data.code;``
                });
            },
            getCookie() {
                const username = Cookies.get("username");
                const password = Cookies.get("password");
                const rememberMe = Cookies.get('rememberMe')
                this.loginForm = {
                    username: username === undefined ? this.loginForm.username : username,
                    password: password === undefined ? this.loginForm.password : decrypt(password),
                    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
                };
            },
            handleLogin() {
                this.$refs.loginForm.validate(valid => {
                    if(!this.checkStaus){
                        this.$message.warning("请拖动滑块验证码");
                        return;
                    }
                    if (valid) {
                        this.loading = true;
                        if (this.loginForm.rememberMe) {
                            Cookies.set("username", this.loginForm.username, { expires: 30 });
                            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
                            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
                        } else {
                            Cookies.remove("username");
                            Cookies.remove("password");
                            Cookies.remove('rememberMe');
                        }
                        this.$store.dispatch("Login", this.loginForm).then(() => {
                            this.$router.push({ path: this.redirect || "/" }).catch(()=>{});
                        }).catch(() => {
                            this.loading = false;
                            this.getCode();//刷新验证码
                            this.checkStaus = true;//刷新状态
                            this.$refs.rang.reset();
                            this.checkStaus = false;
                        });
                    }
                });
            },
            onMpanelSuccess(){
                this.checkStaus = true;
            },
            onMpanelError(){
                this.checkStaus = false;
            },
        }
    };
</script>

<style rel="stylesheet/scss" lang="scss">
  .login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url("../assets/images/login-background.jpg");
    background-size: cover;
  }
  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #707070;
  }

  .login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 400px;
    padding: 25px 25px 5px 25px;
    .el-input {
      height: 38px;
      input {
        height: 38px;
      }
    }
    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 2px;
    }
  }
  .login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }
  .login-code {
    width: 33%;
    height: 38px;
    float: right;
    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }
  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }
  .login-code-img {
    height: 38px;
  }
</style>
